CN207634700U - A kind of radial direction socket type labyrinth type device for sealing magnetic fluid - Google Patents
A kind of radial direction socket type labyrinth type device for sealing magnetic fluid Download PDFInfo
- Publication number
- CN207634700U CN207634700U CN201721737543.7U CN201721737543U CN207634700U CN 207634700 U CN207634700 U CN 207634700U CN 201721737543 U CN201721737543 U CN 201721737543U CN 207634700 U CN207634700 U CN 207634700U
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- China
- Prior art keywords
- pole shoe
- pole
- shoe ring
- ring
- magnetic fluid
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model is related to a kind of radial socket type labyrinth type device for sealing magnetic fluid, including axis, shell, left pole shoe ring, right pole shoe ring, sleeve, magnet ring；The left pole shoe ring and right pole shoe central spacer are set in shell；The sleeve is set on axis, between left pole shoe ring and right pole shoe ring；The magnet ring is set in shell, between left pole shoe ring and right pole shoe ring；There are gaps between the periphery of the sleeve and the inner headed face of magnet ring；Setting pole tooth I in interval on the right side of the left pole shoe ring；Pole tooth II is arranged in interval on the left side of the sleeve, and pole tooth III is arranged in interval on right side；Setting pole tooth IV in interval on the left side of the right pole shoe ring.The purpose of this utility model is to solve the lower problem of pressure-resistant performance existing for existing sealing device so that the sealing technique is successfully applied in the fields such as high-speed overload.
Description
Technical field
The invention belongs to sealing field of mechanical engineering, and in particular to a kind of radial direction socket type labyrinth type magnet fluid sealing dress
It sets.
Background technology
When magnetic fluid seal technology is applied in major diameter, high speed and heavily loaded sealed environment, the magnetism in seal clearance
Fluid often fails because seal clearance is excessive, therefore the pressure-resistant performance for improving wide arc gap magnetic fluid seal is current research
One of hot issue.
Improve wide arc gap magnetic Fluid Sealing pressure resistance performance one of method be by improve magnetic fluid seal structure,
Sealing device as described in documents 1 (patent of Publication No. CN 103115152A).Although the sealing described in document above
The relatively common magnetic fluid seal performance of device is greatly improved, but the spies such as high-speed overload are still not achieved in its sealing performance
The high sealing performance requirement of different operating mode.
Invention content
The object of the present invention is to provide a kind of radial labyrinth formula device for sealing magnetic fluid, are deposited to solve existing sealing device
The lower problem of pressure-resistant performance so that the sealing technique is successfully applied in the fields such as high-speed overload.
Technical scheme is as follows：
The radial socket type labyrinth type device for sealing magnetic fluid, including axis, shell, left pole shoe ring, right pole shoe ring, set
Cylinder, magnet ring；
The left pole shoe ring and right pole shoe central spacer are set in shell, the periphery of left pole shoe ring and right pole shoe ring with it is outer
The inner wall of shell is in contact, and the inner headed face of left pole shoe ring and right pole shoe ring radially extends to the periphery of axis, the periphery with axis
Between there are gaps；
The sleeve is set on axis, between left pole shoe ring and right pole shoe ring；The magnet ring is set to outer
In shell, between left pole shoe ring and right pole shoe ring, respectively left pole shoe ring and right pole shoe ring contact, the periphery of magnet ring with
The inner wall of shell contacts；There are gaps between the periphery of the sleeve and the inner headed face of magnet ring；
Setting pole tooth I in interval on the right side of the left pole shoe ring；Setting pole in interval on the left side of the sleeve
Tooth II, setting pole tooth III in interval on right side；Setting pole tooth IV in interval on the left side of the right pole shoe ring；
The pole tooth I extends to the left side of sleeve in an axial direction, and there are gap, the gaps between the left side of sleeve
In be equipped with magnetic fluid；The right side of pole shoe ring extends the pole tooth II to the left in an axial direction, between the right side of left pole shoe ring
There are gap, magnetic fluid is equipped in the gap；The pole tooth I and pole tooth II is interspersed, and does not contact between each other；
The pole tooth IV extends to the right side of sleeve in an axial direction, and there are gaps between the right side of sleeve, between being somebody's turn to do
Magnetic fluid is equipped in gap；The left side of pole shoe ring extends the pole tooth III to the right in an axial direction, with the left side of right pole shoe ring it
Between there are gap, magnetic fluid is equipped in the gap；The pole tooth IV and pole tooth III is interspersed, and does not connect between each other
It touches.
The periphery of the left pole shoe ring and right pole shoe ring is equipped with annular groove, is set in the annular groove
There is sealing ring.
The magnet ring is axial charging permanent magnet.
The radial socket type labyrinth type device for sealing magnetic fluid, further includes left magnetism-isolating loop and right magnetism-isolating loop；Described
Left magnetism-isolating loop is set to the left side of left pole shoe ring, is close to the inner wall setting of shell；The right magnetism-isolating loop is set to the right side of right pole shoe ring
The inner wall setting of shell is close in side.
The radial socket type labyrinth type device for sealing magnetic fluid further includes left bearing and right bearing, the left axle
Hold and be set on axis with right bearing, the left bearing is set to the left side of left magnetism-isolating loop, the right bearing be set to it is right every
The right side of magnet ring.
The pole intervals tooth I setting 1-10, the pole tooth II correspond to the pole intervals tooth I setting 1-10.
The interval of pole tooth IV setting 1-10；The pole tooth III corresponds to the interval of pole tooth IV setting 1-10
Magnet fluid sealing is to generate magnetic field force in seal clearance using permanent magnet magnetic fluid is secured firmly between sealing
In gap, the pressure difference of both sides is resisted, to achieve the effect that sealing.
The present invention is by designing a kind of labyrinth type sleeve, in radial directions by the pole tooth design on pole shoe, in labyrinth type
Magnetic fluid is injected in the radial clearance of sleeve and pole shoe, to realize a kind of radial socket type labyrinth type device for sealing magnetic fluid.
The present invention overcomes the problems, such as that existing sealing device cannot achieve the special operation conditions high sealing performance requirement such as high-speed overload, using labyrinth
Formula sleeve arrangement structure design makes to form maze spatial between labyrinth type sleeve and pole shoe, realizes labyrinth seal and magnetic fluid
The combination of sealing, while non-magnetic axis is used, the magnetic flux in magnetic circuit is considerably increased, is greatly reduced in seal failure
The loss of magnetic fluid improves the voltage endurance capability and sealing reliability of magnetic fluid seal under the conditions of wide arc gap, expands it
Range of safety operation.
Description of the drawings
Fig. 1 is the structural schematic diagram of sealing device of the present invention；
Each serial number mark and corresponding title are as follows in figure：
1- axis, 2- shells, the left pole shoe rings of 3-, the right pole shoe rings of 4-, 5- sleeves, 6- magnet rings, the poles 7- tooth I, the poles 8- tooth II,
The poles 9- tooth III, IV I of the poles 10- tooth, 11- annular grooves, 12- sealing rings, the left magnetism-isolating loops of 13-, the right magnetism-isolating loops of 14-, 15- left axles
It holds, 16- right bearings.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1, the radial socket type labyrinth type device for sealing magnetic fluid, including axis 1, shell 2, left pole shoe ring
3, right pole shoe ring 4, sleeve 5, magnet ring 6；
The left pole shoe ring 3 and the interval of right pole shoe ring 4 are set in shell 2, the outer circle of left pole shoe ring 3 and right pole shoe ring 4
Face is in contact with the inner wall of shell 2, and the inner headed face of left pole shoe ring 3 and right pole shoe ring 4 radially extends to the periphery of axis 1, with
There are gaps between the periphery of axis 1；
The sleeve 5 is set on axis 1, between left pole shoe ring 3 and right pole shoe ring 4；The magnet ring 6 is set
In in shell 2, between left pole shoe ring 3 and right pole shoe ring 4, left pole shoe ring 3 and right pole shoe ring 4 contact respectively, magnet ring 6
Periphery contacted with the inner wall of shell 2；There are gaps between the periphery and the inner headed face of magnet ring 6 of the sleeve 5；
Setting pole tooth I7 in interval on the right side of the left pole shoe ring 3；Setting is spaced on the left side of the sleeve 5
Pole tooth II8, setting pole tooth III9 in interval on right side；Setting pole tooth IV 10 in interval on the left side of the right pole shoe ring 4；
The pole tooth I7 extends to the left side of sleeve 5 in an axial direction, and there are gaps between the left side of sleeve 5, should
Magnetic fluid is equipped in gap；The right side of pole shoe ring 3 extends the pole tooth II8 to the left in an axial direction, the right end with left pole shoe ring 3
There are gap between face, magnetic fluid is equipped in the gap；The pole tooth I7 and pole tooth II8 is interspersed, and between each other
It does not contact；
The pole tooth IV 10 extends to the right side of sleeve 5 in an axial direction, there are gap between the right side of sleeve 5,
Magnetic fluid is equipped in the gap；The left side of pole shoe ring 4 extends the pole tooth III9 to the right in an axial direction, with right pole shoe ring 4
There are gap between left side, magnetic fluid is equipped in the gap；The pole tooth IV 10 and pole tooth III9 is interspersed, and phase
It is not contacted between mutually.
The periphery of the left pole shoe ring 3 and right pole shoe ring 4 is equipped with annular groove 11, the annular groove
Sealing ring 12 is equipped in 11.
The magnet ring 6 is axial charging permanent magnet.
The radial socket type labyrinth type device for sealing magnetic fluid, further includes left magnetism-isolating loop 13 and right magnetism-isolating loop 14；Institute
The left magnetism-isolating loop 13 stated is set to the left side of left pole shoe ring 3, is close to the inner wall setting of shell 2；The right magnetism-isolating loop 14 is set to the right side
The inner wall setting of shell 2 is close on the right side of pole shoe ring 4.
The radial socket type labyrinth type device for sealing magnetic fluid, further includes left bearing 15 and right bearing 16, described
Left bearing 15 and right bearing 16 are set on axis 1, and the left bearing 15 is set to the left side of left magnetism-isolating loop 13, the right side
Bearing 16 is set to the right side of right magnetism-isolating loop 14.
The pole intervals tooth I7 setting 1-10, the pole tooth II8 correspond to the pole intervals tooth I7 setting 1-10.
The interval of pole tooth IV 10 setting 1-10；The pole tooth III9 corresponds to the interval of pole tooth IV 10 setting 1-10
It is a.
Claims (7)
1. a kind of radial direction socket type labyrinth type device for sealing magnetic fluid, including axis（1）, shell（2）, left pole shoe ring（3）, right pole shoe
Ring（4）, sleeve（5）, magnet ring（6）, it is characterised in that：
The left pole shoe ring（3）With right pole shoe ring（4）Interval is set to shell（2）It is interior, left pole shoe ring（3）With right pole shoe ring（4）
Periphery and shell（2）Inner wall be in contact, left pole shoe ring（3）With right pole shoe ring（4）Inner headed face radially to axis（1）'s
Periphery extends, with axis（1）Periphery between there are gaps；
The sleeve（5）It is set in axis（1）On, it is located at left pole shoe ring（3）With right pole shoe ring（4）Between；The permanent magnet
Ring（6）Set on shell（2）It is interior, it is located at left pole shoe ring（3）With right pole shoe ring（4）Between, the left pole shoe ring of difference（3）With right pole shoe ring
（4）Contact, magnet ring（6）Periphery and shell（2）Inner wall contact；The sleeve（5）Periphery and permanent magnet
Ring（6）Inner headed face between there are gaps；
The left pole shoe ring（3）Right side on interval setting pole tooth I（7）；The sleeve（5）Left side on be spaced and set
Set pole tooth II（8）, setting pole tooth III in interval on right side（9）；The right pole shoe ring（4）Left side on interval setting pole
Tooth IV（10）；
The pole tooth I（7）In an axial direction to sleeve（5）Left side extend, with sleeve（5）Left side between there are gap,
Magnetic fluid is equipped in the gap；The pole tooth II（8）Pole shoe ring to the left in an axial direction（3）Right side extend, with left pole shoe ring
（3）Right side between there are gap, magnetic fluid is equipped in the gap；The pole tooth I（7）With pole tooth II（8）It is interspersed,
And it does not contact between each other；
The pole tooth IV（10）In an axial direction to sleeve（5）Right side extend, with sleeve（5）Right side between there are
Gap is equipped with magnetic fluid in the gap；The pole tooth III（9）Pole shoe ring to the right in an axial direction（4）Left side extend, with right pole
Boots ring（4）Left side between there are gap, magnetic fluid is equipped in the gap；The pole tooth IV（10）With pole tooth III（9）It hands over
Mistake distribution, and do not contact between each other.
2. radial direction socket type labyrinth type device for sealing magnetic fluid as described in claim 1, it is characterised in that：The left pole shoe
Ring（3）With right pole shoe ring（4）Periphery be equipped be equipped with annular groove（11）, the annular groove（11）It is interior to be equipped with sealing
Circle（12）.
3. radial direction socket type labyrinth type device for sealing magnetic fluid as described in claim 1, it is characterised in that：The permanent magnet
Ring（6）For axial charging permanent magnet.
4. radial direction socket type labyrinth type device for sealing magnetic fluid as described in claim 1, it is characterised in that：Further include a left side every magnetic
Ring（13）With right magnetism-isolating loop（14）；The left magnetism-isolating loop（13）Set on left pole shoe ring（3）Left side, be close to shell（2）It is interior
Wall is arranged；The right magnetism-isolating loop（14）Set on right pole shoe ring（4）Right side, be close to shell（2）Inner wall setting.
5. radial direction socket type labyrinth type device for sealing magnetic fluid as claimed in claim 4, it is characterised in that：It further include left bearing
（15）And right bearing（16）, the left bearing（15）And right bearing（16）It is set in axis（1）On, the left bearing
（15）Set on left magnetism-isolating loop（13）Left side, the right bearing（16）Set on right magnetism-isolating loop（14）Right side.
6. radial direction socket type labyrinth type device for sealing magnetic fluid as described in claim 1, it is characterised in that：The pole tooth I
（7）Interval setting 1-10, the pole tooth II（8）Corresponding pole tooth I（7）Interval setting 1-10.
7. radial direction socket type labyrinth type device for sealing magnetic fluid as described in claim 1, it is characterised in that：The pole tooth IV
（10）Interval setting 1-10；The pole tooth III（9）Corresponding pole tooth IV（10）Interval setting 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721737543.7U CN207634700U (en) | 2017-12-14 | 2017-12-14 | A kind of radial direction socket type labyrinth type device for sealing magnetic fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721737543.7U CN207634700U (en) | 2017-12-14 | 2017-12-14 | A kind of radial direction socket type labyrinth type device for sealing magnetic fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207634700U true CN207634700U (en) | 2018-07-20 |
Family
ID=62863519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721737543.7U Expired - Fee Related CN207634700U (en) | 2017-12-14 | 2017-12-14 | A kind of radial direction socket type labyrinth type device for sealing magnetic fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207634700U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956883A (en) * | 2017-12-14 | 2018-04-24 | 广西科技大学 | A kind of radial direction socket type labyrinth type device for sealing magnetic fluid |
| CN109027251A (en) * | 2018-09-03 | 2018-12-18 | 广西科技大学 | A kind of plagiodont device for sealing magnetic fluid |
| CN113790270A (en) * | 2021-09-29 | 2021-12-14 | 北京交通大学 | Embedded sleeve type magnetic liquid sealing device |
| CN114838134A (en) * | 2022-04-02 | 2022-08-02 | 清华大学 | Multi-pole tooth magnetic liquid sealing device |
-
2017
- 2017-12-14 CN CN201721737543.7U patent/CN207634700U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956883A (en) * | 2017-12-14 | 2018-04-24 | 广西科技大学 | A kind of radial direction socket type labyrinth type device for sealing magnetic fluid |
| CN109027251A (en) * | 2018-09-03 | 2018-12-18 | 广西科技大学 | A kind of plagiodont device for sealing magnetic fluid |
| CN113790270A (en) * | 2021-09-29 | 2021-12-14 | 北京交通大学 | Embedded sleeve type magnetic liquid sealing device |
| CN113790270B (en) * | 2021-09-29 | 2022-04-26 | 北京交通大学 | Embedded sleeve type magnetic liquid sealing device |
| CN114838134A (en) * | 2022-04-02 | 2022-08-02 | 清华大学 | Multi-pole tooth magnetic liquid sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180720 Termination date: 20181214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |